754573 divided by 25 
The aim is to understand the frequency of 25 in 754573.

Advancing to step 1:
25 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 25

On to step 2:
The number 25 fits into 75 3 times, leaving a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 75 from 75 and we're left with 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 25

Let's proceed to step 3:
The number 25 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 30.0
If we subtract 0 from 4, we get 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 25

Step 4:
When dividing 45 by 25, we get 1 with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 301.0
Deduct 25 from 45 and we're left with 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 25

Let's proceed to step 5:
The number 25 fits into 207 8 times, leaving a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 3018.0
Deduct 200 from 207 and we're left with 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 25

Step 6:
If we divide 73 by 25, we get 2 and a remainder of 23.
The number 2 becomes the next digit in our result. 
Result so far: 30182.0
Deduct 50 from 73 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
The number 25 fits into 230 9 times, leaving a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 30182.9
Subtract 225 from 230 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
The number 25 fits into 50 2 times, leaving a remainder of 0.
The next digit of our result is 2. 
Result so far: 30182.92
The remainder is 0 after subtracting 50 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
0 divided by 25 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 30182.92
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
If we divide 0 by 25, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 30182.92
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 30182.92 with a remaining 0.0.